JPH0243690B2 - - Google Patents

Info

Publication number
JPH0243690B2
JPH0243690B2 JP56112137A JP11213781A JPH0243690B2 JP H0243690 B2 JPH0243690 B2 JP H0243690B2 JP 56112137 A JP56112137 A JP 56112137A JP 11213781 A JP11213781 A JP 11213781A JP H0243690 B2 JPH0243690 B2 JP H0243690B2
Authority
JP
Japan
Prior art keywords
layer
thin film
film layer
tube
ellipticity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP56112137A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5815041A (ja
Inventor
Hiroyoshi Matsumura
Toshio Katsuyama
Yasuo Suganuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56112137A priority Critical patent/JPS5815041A/ja
Priority to EP82302773A priority patent/EP0067017B1/en
Priority to DE8282302773T priority patent/DE3275591D1/de
Publication of JPS5815041A publication Critical patent/JPS5815041A/ja
Priority to US06/883,456 priority patent/US4828592A/en
Priority to JP2855390A priority patent/JPH02239129A/ja
Publication of JPH0243690B2 publication Critical patent/JPH0243690B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
JP56112137A 1981-05-29 1981-07-20 光ファイバの製造方法 Granted JPS5815041A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56112137A JPS5815041A (ja) 1981-07-20 1981-07-20 光ファイバの製造方法
EP82302773A EP0067017B1 (en) 1981-05-29 1982-05-28 Polarization plane maintaining optical fiber and fabricating method therefor
DE8282302773T DE3275591D1 (en) 1981-05-29 1982-05-28 Polarization plane maintaining optical fiber and fabricating method therefor
US06/883,456 US4828592A (en) 1981-05-29 1986-07-08 Polarization plane maintaining optical fiber fabricating method
JP2855390A JPH02239129A (ja) 1981-07-20 1990-02-09 光ファイバ母材の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56112137A JPS5815041A (ja) 1981-07-20 1981-07-20 光ファイバの製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2855390A Division JPH02239129A (ja) 1981-07-20 1990-02-09 光ファイバ母材の製造方法

Publications (2)

Publication Number Publication Date
JPS5815041A JPS5815041A (ja) 1983-01-28
JPH0243690B2 true JPH0243690B2 (enrdf_load_stackoverflow) 1990-10-01

Family

ID=14579134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56112137A Granted JPS5815041A (ja) 1981-05-29 1981-07-20 光ファイバの製造方法

Country Status (1)

Country Link
JP (1) JPS5815041A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02239129A (ja) * 1981-07-20 1990-09-21 Hitachi Ltd 光ファイバ母材の製造方法
JPS60260442A (ja) * 1984-06-06 1985-12-23 Sumitomo Electric Ind Ltd 定偏波フアイバの製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5248329A (en) * 1975-10-15 1977-04-18 Hitachi Ltd Method for preparation of optical fibers
JPS5669235A (en) * 1979-11-09 1981-06-10 Nippon Telegr & Teleph Corp <Ntt> Preparation of optical fiber
JPS56125233A (en) * 1980-03-07 1981-10-01 Hitachi Ltd Manufacture of optical fiber

Also Published As

Publication number Publication date
JPS5815041A (ja) 1983-01-28

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